15t^4-2t^2+78=0

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Solution for 15t^4-2t^2+78=0 equation:


Simplifying
15t4 + -2t2 + 78 = 0

Reorder the terms:
78 + -2t2 + 15t4 = 0

Solving
78 + -2t2 + 15t4 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
15 the coefficient of the squared term: 

Divide each side by '15'.
5.2 + -0.1333333333t2 + t4 = 0

Move the constant term to the right:

Add '-5.2' to each side of the equation.
5.2 + -0.1333333333t2 + -5.2 + t4 = 0 + -5.2

Reorder the terms:
5.2 + -5.2 + -0.1333333333t2 + t4 = 0 + -5.2

Combine like terms: 5.2 + -5.2 = 0.0
0.0 + -0.1333333333t2 + t4 = 0 + -5.2
-0.1333333333t2 + t4 = 0 + -5.2

Combine like terms: 0 + -5.2 = -5.2
-0.1333333333t2 + t4 = -5.2

The t term is -0.1333333333t2.  Take half its coefficient (-0.06666666665).
Square it (0.004444444442) and add it to both sides.

Add '0.004444444442' to each side of the equation.
-0.1333333333t2 + 0.004444444442 + t4 = -5.2 + 0.004444444442

Reorder the terms:
0.004444444442 + -0.1333333333t2 + t4 = -5.2 + 0.004444444442

Combine like terms: -5.2 + 0.004444444442 = -5.195555555558
0.004444444442 + -0.1333333333t2 + t4 = -5.195555555558

Factor a perfect square on the left side:
(t2 + -0.06666666665)(t2 + -0.06666666665) = -5.195555555558

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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